Preparation method of carbon fiber brake block

A technology of carbon fiber and brake pads, which is applied in the field of carbon fiber automobile brake pads and its preparation, can solve problems such as increased friction coefficient, and achieve the effects of simple manufacturing process, cost reduction, and excellent braking stability

Inactive Publication Date: 2011-10-05
ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems of thermal conductivity and high temperature controllability of the current non-asbestos organic type (NAO type) automobile brake pads, the present invention proposes a method for preparing carbon fiber brake pads. The prepared carbon fiber brake pads have the thermal conductivity and electrical conductivity of metal materials. and heat and corrosion resistance; and as the temperature rises, the friction coefficient remains unchanged or even slightly increases, so it has very good braking stability

Method used

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  • Preparation method of carbon fiber brake block
  • Preparation method of carbon fiber brake block

Examples

Experimental program
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Effect test

Embodiment 1

[0032] (1) Prepare raw materials for carbon fiber brake pads: 45kg of PAN-based carbon fiber, 25kg of phenolic resin, 9kg of copper powder, 3kg of alumina, 10.5kg of kaolin from Inner Mongolia Mengxi Powder Co., Ltd. brand MXK201, produced by Chengdu Huayao Chemical Co., Ltd. Talcum powder 5.4kg, barium sulfate 2.1kg.

[0033] (2) According to the attached figure 1 The process flow diagram shown in the preparation.

[0034] a) Dissolve phenolic resin and absolute ethanol at a mass ratio of 5:1 to make a resin ethanol solution.

[0035] b) Cut the PAN-based carbon fiber tow into small chopped fibers with a length of 5 mm.

[0036] c) At the same time, mix 9kg of copper powder, 3kg of alumina, 10.5kg of kaolin, 5.4kg of talcum powder, and 2.1kg of barium sulfate powder filler in a high-speed mixer for 40 minutes to make a mixed filler of 30kg.

[0037] d) Then fully mix the resin ethanol solution, 45kg of chopped carbon fiber and 30kg of mixed filler in the mixing tank, and t...

Embodiment 2

[0039] (1) Prepare raw materials for carbon fiber brake pads: 50kg of PAN-based carbon fiber, 30kg of phenolic resin, 7kg of copper powder, 3kg of alumina, 7kg of kaolin from Inner Mongolia Mengxi Powder Co., Ltd. brand MXK201, and talc produced by Chengdu Huayao Chemical Co., Ltd. powder 2kg, barium sulfate 1kg.

[0040] (2) According to the attached figure 1 The process flow diagram shown in the preparation.

[0041] a) Dissolve phenolic resin and absolute ethanol at a mass ratio of 3:1 to make a resin ethanol solution.

[0042] b) Cut the PAN-based carbon fiber tow into small chopped fibers with a length of 4 mm.

[0043] c) At the same time, mix the powder filler consisting of 7kg of copper powder, 3kg of alumina, 7kg of kaolin, 2kg of talc powder and 1kg of barium sulfate in a high-speed mixer for 60 minutes to make 20kg of mixed filler.

[0044] d) Then fully mix the resin ethanol solution, chopped carbon fiber and mixed filler in the mixer tank, and the dried mixture...

Embodiment 3

[0046](1) Prepare raw materials for carbon fiber brake pads: 40kg of PAN-based carbon fiber, 20kg of phenolic resin, 10kg of copper powder, 2kg of alumina, 10kg of kaolin from Inner Mongolia Mengxi Powder Co., Ltd. brand MXK201, and talc produced by Chengdu Huayao Chemical Co., Ltd. Powder 5kg, graphite powder 5kg, barium sulfate 5kg, iron powder 3kg.

[0047] (2) According to the attached figure 1 The process flow diagram shown in the preparation.

[0048] a) Dissolve phenolic resin and absolute ethanol at a mass ratio of 6:1 to make a resin ethanol solution.

[0049] b) Cut the PAN-based carbon fiber tow into small chopped fibers with a length of 3 mm.

[0050] c) At the same time, 10kg of copper powder, 2kg of alumina, 10kg of kaolin, 5kg of talc powder, 5kg of barium sulfate, 5kg of graphite powder, and 3kg of iron powder are mixed fully in a high-speed mixer for 30 minutes to make a mixed filler of 40kg.

[0051] d) Then fully mix the resin ethanol solution, chopped ca...

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Abstract

The invention relates to a preparation method of a carbon fiber brake block, relating to the technical field of automobile brake systems. Aiming at the problems of thermal conductivity and high-temperature controllability existing in the current asbestos-free organism-type (NAO type) automobile brake block, the invention provides the preparation method of the carbon fiber brake block which is prepared from the following raw materials including the following components in percentage by weight: 35-55% of carbon fiber, 15-35% of phenolic resin and 20-40% of powdery packing. The prepared carbon fiber brake block has thermal conductivity and electrical conductivity as well as thermal resistance and corrosion resistance of a metal material; and as the rise of temperature, the friction coefficient is kept constant and even is slightly increased, therefore, the carbon fiber brake block has very excellent brake stability.

Description

technical field [0001] The invention relates to the technical field of automobile brake systems, in particular to a carbon fiber automobile brake pad and a preparation method thereof. Background technique [0002] With the development of the automobile industry and the enhancement of people's safety awareness, the braking problem of vehicles has gradually attracted people's attention, and the brake pad is a key component in the braking system. There are three main types of brake pads currently used for braking: asbestos-based brake pads, semi-metal-based brake pads and asbestos-free organic brake pads. Among them, asbestos-based brake pads produce carcinogenic asbestos dust during the braking process, which seriously affects people’s health. In addition to the health hazards, there is another important problem with asbestos-based brake pads. Because asbestos is adiabatic, its heat conduction The ability is particularly poor. Usually, repeated use of the brakes will cause he...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/14F16D69/02
Inventor 程晓君金玉明李俊贤金建伟刘强赵福全
Owner ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD
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